Force-feed lubricator.



No. 879,210. v PATENTED FEB. 18, 1908. E. L. STCK.

' l FORGE FEED LUBRIGATOR. APPLICATION FILED JUNE 2.1906.

bottom ofthe casti EDWARD L. STCK, OF PLOVER, WISCONSIN.

- ronca-FEED Lpnrca'ron.

To ali whom itmay concerni- Be it known that I, EDWARD L. S'r'Uox, white, citizen of the United States, residing at Plover, in the county of Portage and State of Wisconsin, have invented certain new and useful Improvements in Force-Feed Lubricators, of which the following is a specification. K

This invention relates to im rovements in .lubricators of thetype in whic the oil is fed by mechanical fo'rce to the parts to be lubricated. p

The special object of the im rovements which form the subject matter o this application is to provide a sight and force feed lubricator of economical construction which will not be liable to get out of order, and in which the oil will befed in quantities desired.

In the accompanying drawing which forms a part of this a plication I have shown 'a vertical section o a lubricator constructed according to my invention.

Referring tothe details of the drawing, A- represents a lass cylinder which is set 1n a p casting B, an is closed at the top `by a cover G, said casting and cover being secured together by one or more tie-bolts g3. Through the center of the cover is an opening g1, below which is suspended a cup-shaped strainer g through which the oil is poured into the cylinder. f'

The casting B is cup-shaped in its eneral form, and is formed with an upwar ly extendin vertical tubular portion b1, with a centra opening in itsbottom and with two lateral openings extending through suitable bosses formed on its sides at op osite points, all of said openings being threa ed internally to receive parts to be described.

Secured to the bottom of the casting B, by a collar b2 which has a threaded engagement with a flange b on the casting, is avglass sight-feed cup C which receives Water, glycerin or other suitable liquid throu h which the drops oi' oil maybe seen in t 'e usual manner.

Screwed into the central opening in the B, is;a pum asing or tube d1 which exten downward y into the cylinder A, and downwardly into 'the cup C,- 1 is as shown. The upper end of the tube threaded externally and has screwed thereon a cap d?, which, with suitable packing, forms a stuffing-box for a plu er D, which is mounted in the tube an except where spcification or Letter. rama. i Application mea .im 2.1906. serian. 319.941.

arod

-tension b1, and said Patented Feb. 1s, 190s.

grooved as at d, fits atter. In the side of the tube near itslower end is a port d5 which communicates with theinteriorof the cup C. From the portion of the tube d within the cylinder A, extends aA horizontal tubular branch d, the inner end ofV which communicates with the tube through a suitable ort, and the outerend is externally threaded) to receive a valve-chamber b3, which is screwed into an opening in the side wall of the casting B. This chamber is internally threaded to receive a pipe .coupling b upon which may be screwed any suitable pi (not shown) leading to the parts to be lleibricated.

There are ports between the interior of the coupling b and the chamber b3, and between said chamber and the tubular extension d2.

The latter port is contrlled 'by a ball-valve' b* which is normally held on its seat in the closely the wallsof/the' p 4 chamber by an expansion coiled spring b5.

The passage between the mner end of the extension d2 and the pump tube dl is controlled by a ball valve clfwhich is normally held on its seat by the expansion coiled spring d8. 4

In the extension b1 is mounted a (piston f1 the up er end of which has secure thereto l lip which extends upwardly through the cylinder A and the top G, and terminates in a button by which it may be easily turned manually. About midway its length4 the ro'd is threaded and engages a link d8, one end of.which is pivoted to the plunger D and the other end is secured by a pm d to a drive-rod c3 which is connected with and driven b a crank e1 on the inner end of a shaft E. his

shaft is j ournaled in a box e* which is screwled into an opening in the side of the casting B,

passes through a stuffing-box e"i and has a drive pulley ezon its outer end, the latter to be driven by any suitable means.'

Screwed lnto an o ening in the bottoni of i the casting B just be ow the extension b1 is a tube Cf which extends downwardly into the cup and has its lower end bent upwardly.

In the upper end of this tube is a port which i communicates with the lower end of the ex# plort is controlled by a ball-valve j" which is A ubricator constructed substantially as described will operate as follows :Oil being placed in the cylinder A and power being applied to the pulley e, the rod e and plun- Y eld against its seat by y an expansion coiled spring fs secured in the ger D Will he reeiprooated hv the combined in. said receptacle and projecting into said l feed-eup, Sald easlng having Inlet and outlet will enter lhe exienszon b1 through the hole,

action ol' the shaft lil, crank el and link :18; oil

in its side, and he expelled therefrom hy the downwanl stroke ol the piston f1, the pressure being sulleient to unseat the valve fagainst the tension of the. spring f3. Upon the upward movement ol' the plunger D,

Home of the oil resting on lop of the water' in the cup C will he drawn into the extension d1,

ward stroke of said plunger, the oil llowing ports, a plunger arranged in Said easing and adapted to alternately Cover and.' uncover the inlet' port, a laterally extending extension for the casing having'an outlet duct, a, valve yieldingly held in said outlet duet, there being a groove in the side, of Said plunger arranged to' al'ord a constant communig 'c ation between said outlet port and the space and will he expelled from saine hy the downi along the groove d in the plunger, unseating f f said receptacle, aI llnk havlng hxed eonneethe valve (Z3, passing through `the extension fl" w11 h sulhelent pressure. to unseat the valve l." a ud so pass to the connection b".

the extension lil will he Qontrolled, and thereby regulate the llow of oil through the other parts.

llaving thus described my invention what below said plunger, a piston and a cylinder arranged 1n sind receptacle, the easing for 'thehottonl ol" Said Cylinder extending through tion with said plunger, a crank shaft, a. driverod pivoted to said link, a piston rod for said lt will he apparent that by screwing up or down the rod l" the amount of oil entering 1, said sight-feed eup, and a v'alveyieldingly held in said conduit.

In a lubrioator, the combination of an oilpiston ad justahly secured to said link, a eenduit lor conducting oil lrom sald eyhnder to ln testimony whereof l allix my signature in presence of two witnesses.

EDVVA Rl) l). ST'IHK. lVitnesses:

'DANIEL l'loAo, vANNA DoMKA. 

